<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>HTML5_Notification</title>
  <link rel="stylesheet" href="./main.css">
</head>
<body>
  <div class="main">
    <h1>HTML5_Notification</h1>
    <div class="btn" id="showNotice">Click Me</div>
  </div>
  <script src="./main.js"></script>
</body>
</html>
